Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSISUZU1996TROOPER S, AUTOMATICREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION DIAGNOSIS - 4L30-ECOMPONENT TESTINGA/C COMPRESSOR RELAY
1996 Isuzu Trooper S, Automatic
A/C Compressor Relay
1996 Isuzu Trooper S, AutomaticSECTION A/C Compressor Relay
- Remove A/C compressor relay from fuse/relay box at passenger's side front corner of engine compartment. Note A/C compressor terminal identification. See Fig 1 .
- Using a DVOM, ensure continuity is present between terminals No. 3 and 5. Continuity should not be present between terminals No. 1 and 5.
- Apply battery voltage to terminals No. 2 and 4. Ensure continuity is now present between terminals No. 1 and 5, and continuity is not present between terminals No. 3 and 5. Replace A/C compressor relay if defective.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.